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ChemicalBook >> CAS DataBase List >>Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI)

Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI)

CAS No.
19178-25-7
Chemical Name:
Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI)
Synonyms
Pyrido[3.4-d]pyrimidin-4-ol;Pyrido[3,4-d]pyrimidin-4(3H);Pyrido[3,4-d]pyriMidin-4-one;1H-pyrido[3,4-d]pyrimidin-4-one;3H-Pyrido[3,4-d]pyrimidin-4-one;Pyrido[3,4-d]pyriMidin-4(3H)-one;3H,4H-Pyrido[3,4-d]pyrimidin-4-one;3,4-Dihydropyrido[3,4-d]pyrimidin-4-one;3,4-Dihydropyrido[3,4-D]pyrimidine-4-one;Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI)
CBNumber:
CB31045078
Molecular Formula:
C7H5N3O
Molecular Weight:
147.13
MDL Number:
MFCD09999183
MOL File:
19178-25-7.mol
Last updated:2025-07-24 18:13:51

Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI) Properties

Melting point 305℃
Boiling point 346.2±34.0 °C(Predicted)
Density 1.47±0.1 g/cm3(Predicted)
storage temp. Sealed in dry,Room Temperature
pka 2.95±0.20(Predicted)
Appearance Light brown to gray Solid

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302+H312+H332
Precautionary statements  P260-P280-P312
HS Code  2933998090

Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI) price More Price(22)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TRC P841018 Pyrido[3,4-d]pyrimidin-4(3H)-one 19178-25-7 100mg $65 2021-12-16 Buy
ChemScene CS-0046977 Pyrido[3,4-d]pyrimidin-4(3H)-one 19178-25-7 250mg $70 2021-12-16 Buy
ChemScene CS-0046977 Pyrido[3,4-d]pyrimidin-4(3H)-one 19178-25-7 100mg $52 2021-12-16 Buy
ChemScene CS-0046977 Pyrido[3,4-d]pyrimidin-4(3H)-one 19178-25-7 1g $168 2021-12-16 Buy
Biosynth Carbosynth FD144237 3,4-Dihydropyrido[3,4-d]pyrimidin-4-one 19178-25-7 250mg $170 2021-12-16 Buy
Product number Packaging Price Buy
P841018 100mg $65 Buy
CS-0046977 250mg $70 Buy
CS-0046977 100mg $52 Buy
CS-0046977 1g $168 Buy
FD144237 250mg $170 Buy

Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI) Chemical Properties,Uses,Production

Synthesis

Formamidine acetate

3473-63-0

3-Aminoisonicotinic acid

7579-20-6

Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI)

19178-25-7

3-Aminoisonicotinic acid (691 mg, 5.0 mmol), formamidine acetate (573 mg, 5.5 mmol) and anhydrous ethanol (10 mL) were added to a Biotage microwave reactor tube. The reaction mixture was placed in a microwave reactor and heated at 160 °C for 30 min. After completion of the reaction, the reaction solution was diluted with deionized water (20 mL) and cooled to 0 °C in an ice bath. The resulting suspension was extracted and the filter cake was washed with ice-cooled deionized water (10 mL) to afford quinazoline A2 (259 mg, 35% yield) in white solid form. The product was analyzed by LC-MS showing purity >98% (m/z = 148.0 [M + H]+, retention time Rt = 0.604 min).

References

[1] Journal of Medicinal Chemistry, 2016, vol. 59, # 4, p. 1370 - 1387
[2] Patent: WO2014/179237, 2014, A1. Location in patent: Paragraph 00491

Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI) Preparation Products And Raw materials

Raw materials

Preparation Products

Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI) Suppliers

Global( 60)Suppliers
Supplier Tel Email Country ProdList Advantage
Alchem Pharmtech,Inc. 		8485655694 sales@alchempharmtech.com United States 63687 58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd 		+8613580539051 joe@yuhengpharm.com CHINA 21142 58
ANHUI WITOP BIOTECH CO., LTD 		+8615255079626 eric@witopchemical.com China 23541 58
Shaanxi Dideu Medichem Co. Ltd 		+86-029-89586680 +86-18192503167 1026@dideu.com China 7921 58
Dayang Chem (Hangzhou) Co.,Ltd. 		+86-0571-88938639 +8617705817739 info@dycnchem.com China 52846 58
Labnetwork lnc. 		+86-27-50766799 +8618062016861 contact@labnetwork.com China 19987 58
PT CHEM GROUP LIMITED 		+86-85511178; peter68@ptchemgroup.com China 35425 58
GIHI CHEMICALS CO.,LIMITED 		+8618058761490 info@gihichemicals.com China 49983 58
Aladdin Scientific 		tp@aladdinsci.com United States 52924 58
Amadis Chemical Company Limited 		571-89925085 sales@amadischem.com China 131957 58

View Lastest Price from Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI) manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI) pictures 2025-06-25 Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI)
19178-25-7
 US $1.10 / g 1g 99.0% min 100 tons min Shaanxi Dideu Medichem Co. Ltd

Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI) Spectrum

Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI) Pyrido[3.4-d]pyrimidin-4-ol Pyrido[3,4-d]pyriMidin-4(3H)-one 3H-Pyrido[3,4-d]pyrimidin-4-one 3,4-Dihydropyrido[3,4-d]pyrimidin-4-one 3H,4H-Pyrido[3,4-d]pyrimidin-4-one Pyrido[3,4-d]pyriMidin-4-one Pyrido[3,4-d]pyrimidin-4(3H) 1H-pyrido[3,4-d]pyrimidin-4-one Pyrido[3,4-d]pyrimidin-4(3H)-one (8CI,9CI) ISO 9001：2015 REACH 3,4-Dihydropyrido[3,4-D]pyrimidine-4-one 19178-25-7 PYRIMIDINE